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Theory of a generalized Fulde-Ferrell-Larkin-Ovchinnikov state in heavy fermion and intermediate-valence superconductors

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Takahashi, S., Tachiki, M., Modler, R., Gegenwart, P., Lang, M., & Steglich, F. (1996). Theory of a generalized Fulde-Ferrell-Larkin-Ovchinnikov state in heavy fermion and intermediate-valence superconductors. Physica C, 263(1-4), 30-34. doi:10.1016/0921-4534(96)00037-8.


Cite as: http://hdl.handle.net/11858/00-001M-0000-0019-E7A7-7
Abstract
Anomalies in the magnetization and crystal dilatation have been observed in the mixed state of UPd2Al3 and CeRu2. To explain the anomalies we study a superconducting system with large spin susceptibility. We predict a new superconducting state in which the superconducting order parameter has a periodic array of planar nodes perpendicular to the vortices. The nature of this generalized Fulde-Ferrell-Larkin-Ovchinnikov state is discussed in connection with the peak effect in the magnetization process of UPd2Al3 and CeRu2.